The Planning Guide to Piping Design
eBook - ePub

The Planning Guide to Piping Design

Richard Beale, Paul Bowers

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  2. English
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eBook - ePub

The Planning Guide to Piping Design

Richard Beale, Paul Bowers

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About This Book

The Planning Guide to Piping Design, Second Edition, covers the entire process of managing and executing project piping designs, from conceptual to mechanical completion, also explaining what roles and responsibilities are required of the piping lead during the process. The book explains proven piping design methods in step-by-step processes that cover the increasing use of new technologies and software. Extended coverage is provided for the piping lead to manage piping design activities, which include supervising, planning, scheduling, evaluating manpower, monitoring progress and communicating the piping design.

With newly revised chapters and the addition of a chapter on CAD software, the book provides the mentorship for piping leads, engineers and designers to grasp the requirements of piping supervision in the modern age.

  • Provides essential standards, specifications and checklists and their importance in the initial set-up phase of piping project's execution
  • Explains and provides real-world examples of key procedures that the piping lead can use to monitor progress
  • Describes project deliverables for both small and complex size projects
  • Offers newly revised chapters including a new chapter on CAD software

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Information

Year
2017
ISBN
9780128126622
Edition
2
Topic
Design
Chapter One

Before You Begin

Abstract

This chapter sets the tone for the purpose of the book. It begins by creating an awareness of the importance of an initial piping design set-up and moves to introducing in summary the topics that are covered in more detail in the following chapters. Summarization begins with a review of the common aspects of piping design set-up known to all piping designers; these being standards, specifications, and procedures. The chapter moves to discussing the often overlooked project management documentation, such as the Design Basis Memorandum and Project Execution Plan, of which the piping lead must inform themselves due to there being information contained in this documentation that can impact set-up decisions. The chapter is concluded by emphasizing that the piping lead is accountable for the piping set-up on the project.

Keywords

Standards; specifications; procedures; drawings; piping classes; charts; CAD; design basis memorandum; DBM; Project Execution Plan; PEP

1.1 Introduction

In order to execute the piping designs of a project efficiently, it is essential that you initially identify and address all of the prerequisites that must be in place for the piping designers to start work. In order to do this you must first recognize all the questions that must be asked and answered, assemble all the needed tools, and make decisions accordingly. As you progress in your career you will find that this ability is required for any project, and that the best piping leads are those who can create missing tools when the need arises.
The intent of this chapter is to provoke your thought process: it focuses on the questions to ask and the tools required in order to begin a project. Do you have everything you need to proceed?
A first step is to assemble and then make yourself familiar with the engineering company and/or client standards, specifications, and procedures to be used on the project. Larger clients will have certain requirements in place and mandate that those requirements be used on the project, whereas smaller clients will likely default entirely to the engineering company. Generally speaking, all projects will use a combination of engineering company and client standards, specifications, and procedures. You must ensure that you know which you are using and where they come from. As a piping lead it is doubly important to familiarize yourself with these requirements, not just so you can guide your team, but because you will likely have to explain your design basis to other departments and sometimes even to the client themselves. It is also up to you to insist that they be respected and adhered to, or that a formal deviation be approved by the client. On this note, you must inform yourself of the deviation procedure to be used on the project.
Examples of standards are as follows:
Standard fabrication and installation details/drawings such as shoe design and base ell supports.
Drawing standards such as layering, text heights, and drawing symbols.
Charts such as line spacing within racks.
Examples of specifications are piping classes, equipment spacing requirements, and egress and ingress requirements (walkways, platforms, and ladders).
Examples of procedures are drawing reviews, model reviews, checking, and as-builting.
Below are some brief explanations of standards, specifications, and procedures, and their most likely sources. There are no guarantees, so you will have to investigate each in turn. As we progress into further chapters we will highlight these in more detail, discuss the importance of decision making at an early stage, and discuss the links between the topics. Once you have investigated, assembled, and made all your decisions, you are ready to go, and you have set yourself on a path toward a successful piping execution. By the time you have completed your initial set-up you will have a greater understanding of the project, the expectations, and how you will achieve those expectations. Knowing the reasons behind all of the decisions you have made or helped to make will put you in a position to recognize when things are going wrong, and will aid greatly later in correcting them.

1.2 Standards

To determine whether the standards to be used are going to come from your own company or your client, you must consult with your project management team and the client.
Standards include the following:
Standard drawings
Charts
Drawing templates and drawing standards
Drawing numbering
3D model numbering
Material commodity codes

1.2.1 Standard drawings

Standard drawings are typical fabrication and installation details of commonly encountered items. These are assigned a tag number for easy reference on the piping arrangements and isometrics. The use of a standard avoids detailing the same thing time after time. Commonly, standard drawings are as follows:
Shoes
Anchors: fixed and directional
Guides
Base ell supports
Dummy legs
Trunnions
Field supports
Reinforcing pads
Slide plates
Tracing details
Insulation details
Instrument connection details
Orifice tap orientations
Block and bleed details
Vents and drains
Utility Stations
Heat Trace Manifolds
Where suitable, a standard will cover more than one Nominal Pipe Size (NPS), so that one fit for purpose design may be used on a range of pipe sizes. For instance, all companies will have shoe designs that will cover a range similar to the ones below:
NPS 6 and under
NPS 8 to NPS 12
NPS 14 to NPS 18
NPS 20 to NPS 24
You will find that companies mercilessly plagiarize from each other, and most likely you will recognize standards that you have used before as you move from one company to another. You may even see ...

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